Patent US3402169A successfully refreshed from Google Patents.
US3402169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyhalogenous polyhydroxy ethers
Assignee: Wyandotte Chemicals Corp
•
Filing: 1964-01-02
•
Granted: 1968-09-17
•
Expires: 1984-01-02
Abstract
No abstract record available.
Inventors
- 👤 Ruth H Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:02
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5003; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2606; Y; Y10; Y10S; Y10S260/00; Y10S260/24; Y10S516/00; Y10S516/01; Y10S516/905; Y10S516/917; Y10S516/92
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
130 words
A POLYHALOGENOUS POLYHYDROXY ETHER COMPRISING THE PRODUCT FORMED BY MIXING AND REACTING TOGETHER AT AN ELEVATED TEMPERATURE AND IN THE PRESENCE OF A CATALYTIC AMOUNT OF A LEWIS ACID: (1) A POLYHYDRIC ALCOHOL INITIATING COMPOUND HAVING A MAXIMUM OF 8 HYDROXY GROUPS, (2) A HALOGENATED PROPYLENE OXIDE HAVING AN ALKYL GROUP ATTACHED TO A CARBON ATOM OF THE OXIRANE RING, SAID ALKYL GROUP HAVING A MAXIMUM OF 2 CARBON ATOMS AND CONTAINING AT LEAST 2 CHLORIDE ATOMS BONDED TO THE SAME TERMINAL CARBON ATOM, (1) AND (2) BEING IN A MOLAR RATION OF ABOUT 1:1 TO ABOUT 1:24, SAID ETHER BEING CHARACTIZED BY THE PRESENCE OF PENDANT ALKYL GROUPS HAVING A MAXIMUM OF TWO CARBON ATOMS, AND HAVING AT LEAST TWO HALOGEN ATOMS BONDED TO THE SAME TERMINAL CARBON ATOM.
Claim 2
Dependent Claim
130 words
A POLYHALOGENOUS POLYHYDROXY ETHER COMPRISING THE PRODUCT FORMED BY MIXING AND REACTING TOGETHER AT AN ELEVATED TEMPERATURE AND IN THE PRESENCE OF A CATALYTIC AMOUNT OF A LEWIS ACID: (1) A POLYHYDRIC ALCOHOL INITIATING COMPOUND HAVING A MAXIMUM OF 8 HYDROXY GROUPS, (2) A HALOGENATED PROPYLENE OXIDE HAVING AN ALKYL GROUP ATTACHED TO A CARBON ATOM OF THE OXIRANE RING, SAID ALKYL GROUP HAVING A MAXIMUM OF 2 CARBON ATOMS AND CONTAINING AT LEAST 2 CHLORIDE ATOMS BONDED TO THE SAME TERMINAL CARBON ATOM, (1) AND (2) BEING IN A MOLAR RATION OF ABOUT 1:1 TO ABOUT 1:24, SAID ETHER BEING CHARACTIZED BY THE PRESENCE OF PENDANT ALKYL GROUPS HAVING A MAXIMUM OF TWO CARBON ATOMS, AND HAVING AT LEAST TWO HALOGEN ATOMS BONDED TO THE SAME TERMINAL CARBON ATOM.
Claim 3
Dependent Claim
28 words
A POLYHYDROXY ETHER AS DEFINED IN CLAIM 1 OF ALPHAMETHYLGLUCOSIDE AND 1,1,1-TRICHLORO-2,3-EPOXYPROPRANE, WHEREIN SAID ALPHA-LMETHYLGLUCOSIDE AND 1,1,1-TRICHLORO2,3-EPOXYPROPANE ARE IN A MOLAR RATION OF ABOUT 1:1 TO ABOUT 1:16.
References Cited (Backward Citations)
US2327053A
Cited
US2581464A
Cited
US2700686A
Cited
US3135706A
Cited
US3016404A
Cited
US3244754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |